Diamond (or Simulant)
Carbon (C) or various simulants (e.g., Cubic Zirconia)
Category
Browse mineral simulant (synthetic glass) specimens identified by the Rock Identifier community.
Diamond (or Simulant)
Carbon (C) or various simulants (e.g., Cubic Zirconia)
Pearl (Imitation / Cultured Pearl)
Calcium carbonate (CaCO3) with conchiolin (or synthetic glass/plastic imitation)
Opalite
Synthetic glass (SiO2 + metal additions)
Opalite
Synthetic Glass (Simulated Opal)
Clear quartz crystal sphere
Quartz (silicon dioxide, SiO₂)
Faceted diamond
Diamond; crystalline carbon (C)
Cherry Quartz with Rose Quartz
Crystalline Quartz (SiO2) with glass-based synthetic components
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, e.g., Antigorite, Lizardite, or Chrysotile)
Blue-violet faceted gemstone, likely amethyst
Quartz (SiO₂), purple variety colored mainly by iron impurities and irradiation
Diamond
Carbon (C)
Goldstone
Man-made glass infused with copper crystals
Decorative gemstone bracelet or jewelry
Unidentifiable from the blurred image; likely colored glass or synthetic stones, possibly mixed gemstone beads
Diamond ring
Diamond, crystalline carbon (C), set in a metal ring
Pearl and Garnet Glass
Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass
Zirconia (Ceramic) & Ion-X Glass
Zirconium Dioxide (ZrO2) and Ion-strengthened Aluminosilicate Glass
Goldstone
N/A (Synthetic Glass with Copper Inclusions)
Colorless faceted gemstone, likely glass or cubic zirconia
Uncertain; possible cubic zirconia (ZrO₂) or quartz (SiO₂), but the image may show a man-made simulant
Strawberry Quartz (or Sunstone / Tumbled Quartz)
Silicon Dioxide (SiO2) with Hematite/Lepidocrocite inclusions
Likely blue glass or synthetic gemstone jewelry
Uncertain; possibly synthetic spinel, cubic zirconia, or blue glass
Ruby / Red Tourmaline
Corundum (Al2O3) or Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4)
Diamond (or Diamond Simulant)
Carbon (C)
Carborundum (Silicon Carbide)
Silicon Carbide (SiC) / Moissanite (natural form)
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
Diamond (or Cubic Zirconia simulant)
Carbon (C) or Zirconium Dioxide (ZrO2)
Gold ring with a clear faceted gemstone
Likely colorless diamond (carbon, C); identification from the image is uncertain
Diamond (likely) in an antique gold ring
Diamond, crystalline carbon (C)
Garnet-set gold ring
Likely almandine garnet, Fe₃Al₂(SiO₄)₃; the image does not establish the stone’s identity or treatment
Strawberry Quartz (Hematoid Quartz)
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
Red gemstone ring, likely synthetic ruby or red glass
Unidentified red faceted stone; ruby is corundum (Al₂O₃)
Red cabochon gemstone ring (likely ruby or red spinel; identity unconfirmed)
Possibly corundum (ruby, Al₂O₃) or spinel (MgAl₂O₄); visual identification alone cannot distinguish these from glass or synthetic stones.
Red corundum (ruby) crystal fragment
Corundum, Al₂O₃; ruby is red corundum colored mainly by chromium
Diamond-set earring
Diamond (carbon, C); crystal structure: cubic
Diamond (or Diamond Simulant)
Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)
Blue topaz-style pendant (stone identity uncertain)
Possibly blue topaz (Al₂SiO₄(F,OH)₂); the image cannot confirm whether the stone is natural or synthetic
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
Synthetic Sapphire and Ion-X Glass
Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass
Ruby (in costume jewelry context)
Corundum (Al2O3) with Chromium impurities
Faceted colored gemstones, likely synthetic corundum or glass imitations
Not identifiable from the image; possible synthetic corundum (Al₂O₃)
Pink faceted gemstone, likely synthetic or treated quartz
Quartz, silicon dioxide (SiO₂); exact identity cannot be confirmed from the image
Blue glassy mineral fragment, possibly sodalite or dyed/cobalt glass
Uncertain; likely sodalite (Na₈Al₆Si₆O₂₄Cl₂) if natural, but vivid blue color may indicate cobalt-colored glass
Faceted clear gemstone, likely glass imitation or cubic zirconia
Uncertain; possibilities include cubic zirconia (zirconium dioxide, ZrO₂), quartz (SiO₂), or lead glass